The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 1988
Filed:
Mar. 16, 1987
Kiyoshi Tokita, Fukaya, JP;
Kaneharu Kida, Fukaya, JP;
Michio Nakamura, Kamisato, JP;
Tooru Takahashi, Fukaya, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A deflection device generating magnetic field for electron beam deflection comprises, a cylindrical mold, a horizontal deflection coil provided inside the mold, a magnetic core attached to outside of the mold, a vertical deflection coil wound on the core, and magnetic member means for modifying deflection field distribution, interposed between the mold and vertical deflection coil. The deflection device further includes a porous ceramic layer for heat dissipation coated on at least a part of the outer surfaces of the mold, horizontal deflection coil, vertical deflection coil and magnetic member means.